Method of consolidating flue-dust for use in the manufacture of steel.



k r W. THOMLIN QN. METHOD OF OQNSOLIDATING PLUE DUST FOR USE IN THEMANUFACTURE OF STEEL.

APPLIOATIONTILED JUNE 3, 1908. v

923,605. Patented June 1,1909.

. I M w This'invd This invention r el UNITED OFFICE.

To azzfaham awn-a I Be it knew'ny I, Win 7 son, a subject of the King ofGre Method of C West-' Hartlepool a the @0 atyjo'rin a a g useful EImprovements j lar' the; ionowing tb 'bea full, I description of theinvention, 7 enable" othersskilled he rt appertains ek" and u i thecons'olidation of flue finely divi'ded ironrjore,pnrplejo v residues orother materials ntain manganese, or our f calcined blocks, lumps o thepurposes'of maiinf Y hr The iisual methodbf reatlng A, into 'briquei by,manual labor, or by, machi manual labor icombined; t dried-, or

awa e t a as sji'clifbri uetsihave'to be fir olded, I and when"sufficiently set, to ibe conveyed from moldingopnw a l ry wh nsubsequently dried, Q 'pile'c lTo'rT set 'up'I- i stacks for burning inthe kil being separately handle'di The objeceof'my 'inverition is toavoid th s xpensiveman pulat onsiiand to render such materialseasy tohandle in large a masses, and to wlden 1n this way'f't e em:

ployment of the material's}.for-bymy "process raw material witha"comparatively;emu percentage of metal can be utilized, which by theolder and more costly methods its use is debarred by reason' lof thecost of the process of manufacture. a

To carry out my invention, I putrthis material through an ordinarypugging, mixing or grinding mill to obta n more homogeneity and toincrease to some extent its binding. properties. 'W-ith all materialsthis maynot be necessary, and in some' cases certain materials,particularly where they have a slight natural or artificial admixture ofclay, or other cohesive substance, may be conveved direct'to the kilnsfor molding and burning; Generally speakin previous milling, is anadvantage and m y; be ofgservice: t

su sequent compression, either manual or foi fsnla rof GARE?WESTHARTLEPO QL,IErIGLANJit..

' a; 1908.- steam 4346,5213

y machinery, t Obta additiQnaIsQIidifilcatio'n is an advantage,butthisis notfinall a i" sw i ll to my inYbnt n-I I1: "i andlrelandjresiding"iatf'Seaton 'Carew', K

re y, edii ebl ihiqh l m t ee t t m a order In; chatfimyfgiinert aifclea rly ninderstoodand readily carried; into l at; P Pi Se Sh ll. r rto et -v wingahinj'which i, y longitudinal sectional elevar u di idd ral i k nl e o tt onal elevation. f Figs,

on th invention, I convey,

long ,movable -;lat.eral i f'par't'iti'ons which maybe either drawnoutfor lifted out by a cranelo'r. other appliance;

passages; 1d and e'belowlandat the sides can alsobe provided 'byrecessesin the briclrwork of the; lriln, fl he; holes 7 marked c may 5,

e i i' difier ntlr aeesl nt-th ar u ump ifwsodesired, and theohannel dmaybe of, A

dthsLjj Channels of a. similar C gejoffthe gas'or,heat, may be; o a ga nH This notfonly insures hard burning but makes the subsequent handlingand breaking 'up easy;

ing-process, the resultant product may be re-' moved by its aid whenproperly burned, and

dcpositedin a place convenient for loading v from the mills ormixers,into large molds,

subdivided, perforated, or entire, which molds are when suflicientlysolid, or immediately when artificially compressed,

S 1 "T1133? mmcwmi or g l t aften'ted dune 1,

I willjpioceed; to jdesljib the same, I

t n. 1 ii Qm ii i f ka he p mi s; I Ma a esr; Pe ng m l, di to the k n,either by'fman'ual labor. or fby bogies or 1 by ef neiore ted-in any i iY 1de wallls offthelriln.

} lLVhere a crane is employed in the mold- H I may be withdrawn by thereverse operation.

The simple method of treatment,'the han-' dling in large bulk and theexcellence of the material produced, when compared with the ordinarymethod of treatment, the handling in small pieces, the drying andsubsequent piling and burning in kilns as brlquets, and the heavy laborcosts, show a large and material advantage, and a great saving in thecost of manufacture; the novel methods of treating and handling enablean, excellent product free from smalls to be obtained,

which in the case of metallurgical operations 1s an important factor.

It will be observed that in handling the it can be molded in material inlarge masses, a rough and ready manner, by simply chargin the same intoa molding box suitably subdivided, and around suitable cores to form thechannels 0. These channels are of great importance in carrying out theproc ess, for they serve as passages for the hot gases, and therebyfacilitate and promote the consolidation or drying step of the process.In addition to this these passages c serve in the completed product tofurnish lines of easy fracture, and thereby to aid in breaking up thelarge finished masses into suitable lumps for charging into a blastfurnace. p

I wish it to be understood that the invention is applicable to fluedust, pulverized or finely divided ore, purple ore, pyrites, residues,or other material containing iron, manganese or other metals, or amixture of some or all of'these; andtherefore the term flue I I I i I II l I I I I I I I I I i I I dust, as found in the claims, is to beunderstood as covering any or all of such materials. Having thusdescribed my invention, what I desire to claim and secure by LettersPatent of the United States, is-

1. The process of forming flue dust material into lumps suitable forcharging into a blast furnace, which consists in suitably molding saidmaterial into masses provided with channels, and then utilizing saidchannels to aid in breaking up said masses into lumps of a size suitablefor charging into said furnace, substantially as described.

' 2. The process of forming fine dust material into lumps suitable forcharging into a blast furnace which consists in suitably molding saidmaterial into masses provided with channels; passing hot gases throughsaid channels to solidify said material, and then utilizing saidchannels to break up said masses into lumps suitable for use in saidfurnace, substantially as described. p I

3. The process of forming fine dust ma terial into lumps suitable forcharging into a blast furnace which consists in suitably grinding,mixing and n'iolding said material into masses provided with channels;passing hot gases through said channels to solidify said material, andthen utilizing said channels to. break up said masses into lumpssuitable for use in said furnace, substantially as described.

4. The process of forming the materials hereinbefore referred to intodried or calcined blocks for use in the manufacture of iron or steel,which consists in consolidatin said material into masses having verticadivision spaces therein and longitudinal channels therethrough,substantially as described.

In testimony whereof, I aflix my signature, in presence of twowitnesses.

- WILLIAM THOML'INSON.

Witnesses F. IV. LANDALE,

J OHN W. VVAL'ION.

